Door-check.



C. FERNANDEZ DOOR CHECK.

APPLICATION FILED NOV. 20. H6.

Pamnted D00. 11, 1791?. I

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Specification of rates ratent. p t t 11, 1mm,

Application filed November 20, 1916. Serial No. 132,264.

To all whom it mag concern:

Be it known that I, CHARLES FERNANDEZ, a citizen of the United States,and a resident of Seattle, inthe county of King and State of Washington,have invented certain new and useful Improvements in Door- Checks,

This invention relates to improvements in door checks, and has for itsprincipal object to provide a generally improved and novel form of doorcheck, whereby a door may be checked and retained in a number ofdifferent positions without the necessity of a floor bolt. A furtherobject is to provide cooperating means, one portion of which issecured'to the door frame, and another portion of which is secured tothe door. Still a further object is to provide means attachable to adoor and to a door frame, whereby when the door is swung upon its hingesits motion is set or retarded at a predetermined number of points in acircle swing. State-room doors on vessels and the like are difficult toretainin an open or semiopen position without some positive means offastening, chiefly on account of the roll of the ship. My device'isintended for use in such cases and offers a semi-positive means forpreventing the door from swinging upon either side of the predeterminedpoint of setting thedoor.

Other objects will appear as my invention is more fully explained in thefollowing specification, illustrated in the accompanying drawings, andpointed out in the appended claim.

Figure 1 is a plan view of a modified form of my device. Fig. 2 is anenlarged sectional elevation of same.

Referring more particularly to the drawings, numeral 1 will designatethe door which is hinged to the frame 2. A toothed rack 4. similar torack 4, is secured to frame 2 and is concentric with respect to the doorhinge line. Casing 5 is secured direct to the face of door 1 and isprovided with upstanding lugs 22 one on either side of rack 4 A roller23 is mounted within lugs 22 function of the roller is to keep the trackin engagement with a pinion 24: which is mounted on a shaft 25 which inturn is The mounted in bearings 26 within the casing 5 Levers 27 aresecured one to either end of shaft 25 and are set at a slight angle withrespect to each other and with respect to a plane which passes throughthe center line of the shaft 25. Arms 28 are secured adjacent the endsof levers 27 and support the upper ends of springs 29 the lower ends ofwhich are secured to bolts 30. Bolts 30 are adj ustably mounted inhousing 5. In my device, the springs 29 tend to hold the levers 27 inthe position as shown and act somewhat against each other in thisposition due to.

remain in thei normal position. The tension of the springs is suflicientto resist the ordinary tendency of the door to swing and it will requiresome little shove to move the door from normal position. It will beapparent that there is a normal or holding position for the door inevery revolution of the pinion 24. I also provide a night latch 31 whichis pivoted to casing 5 as at 32. The lower end of the night latchprojects through a slot in the casing and may be operated bv'the handfrom the inside of the door. When the night latch is shoved to the rightthe upper end engages the teeth of the pinion 24 and prevents the pinionfrom revolving, thereby preventing the door from being swung in eitherdirection. The night latch is of particular advantage on steamers andthe like where it is desired to leave the door slightly ajar but lockedagainst entrance. 7

\Vhile l have shown a particular form of embodiment of my invention, 1am aware that many minor changes therein will readily suggest themselvesto others skilled in the art without departing from the spirit and scopeof the invention, and I therefore desire to avoid being limited to theexact claim.

Having described my invention, what it claim as new and desire toprotect by Letters Patent, is-

In a device of the class described, the combination of of means forautomatically checking a door at a plurality of predetersprings areelongated and therefore tend to mined positions, said means including aand tension springs one end of each of which toothed rack mounted uponthe door frame is secured to the said levers whereby when concentricallywith the hinge line of the the door is swung onits hlnges the movc- 10door, a'pinionsfecuied to a shaft andrnoiintment of the levers willincrease the tension 5 ed upon the door and engaging the said rack, ofthe springs which will tend to hold the levers secured to either end ofthe pinion door in normal position.

shaft and disposed sit an angle to each end Y CHARLES FERNANDEZ.

Copies of this patent may be obtained for five cents; each, b"yaddressing the Commissioner of Patents, Washin'gtoinl). 0.

